#2C66B8#2C66B8

#2C66B8 is a mid, vivid blue. Relative luminance 0.135; OKLCH L 51.6% C 0.143 H 257.7°. Best body text is #FFFFFF at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#2C66B8
RGB	rgb(44, 102, 184)
HSL	hsl(215, 61%, 45%)
HSV	hsv(215, 76%, 72%)
CMYK	cmyk(76.1%, 44.6%, 0%, 27.8%)
CIE-LAB	lab(43.50, 10.31, -48.75)
CIE-LCH	lch(43.50, 49.83, 281.94°)
OKLab	oklab(51.59% -0.0305 -0.1397)
OKLCH	oklch(51.59% 0.143 257.7)
XYZ	xyz(14.4386, 13.4973, 47.1824)
Luminance	0.1350 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2C66B8 #B87E2C

analogous

#2CACB8 #2C66B8 #382CB8

triadic

#2C66B8 #B82C66 #66B82C

tetradic

#2C66B8 #B82CAC #B87E2C #2CB838

square

#2C66B8 #B82CAC #B87E2C #2CB838

split-complementary

#2C66B8 #B8382C #ACB82C

monochromatic

#142F55 #204B87 #2C66B8 #4D85D4 #7EA7E0

Accessibility & contrast

On white

5.68

#2C66B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#2C66B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2C66B8

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2C66B8	#FFFFFF	#000000	##FFFFFF
##2C66B8	1.00	5.68	3.70	5.68
#FFFFFF	5.68	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C6EBB

Deuteranopia (green-blind)

#2061B6

Tritanopia (blue-blind)

#007986

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #2c66b8;
/* rgb */ color: rgb(44, 102, 184);
/* oklch */ color: oklch(51.6% 0.143 257.7);

Tailwind

colors: {
  custom: {
    50: '#7991ce',
    500: '#2c66b8',
    950: '#000000',
  },
}

SCSS

$custom: #2c66b8;
$custom-light: #7991ce;
$custom-dark: #000000;

JSON

{
  "hex": "#2c66b8",
  "rgb": {
    "r": 44,
    "g": 102,
    "b": 184
  },
  "hsl": {
    "h": 215.143,
    "s": 61.404,
    "l": 44.706
  },
  "oklch": {
    "l": 0.51594,
    "c": 0.14297,
    "h": 257.7
  },
  "luminance": 0.13499
}

Semantic roles & 50–950 ramp

primary

#2C66B8

secondary

#C9A777

accent

#A243E5

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #2C66B8

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →